VarBench: Robust Language Model Benchmarking Through Dynamic Variable Perturbation

Fuente: arXiv
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Main Authors: Qian, Kun, Wan, Shunji, Tang, Claudia, Wang, Youzhi, Zhang, Xuanming, Chen, Maximillian, Yu, Zhou
Format: Preprint
Published: 2024
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author Qian, Kun
Wan, Shunji
Tang, Claudia
Wang, Youzhi
Zhang, Xuanming
Chen, Maximillian
Yu, Zhou
author_facet Qian, Kun
Wan, Shunji
Tang, Claudia
Wang, Youzhi
Zhang, Xuanming
Chen, Maximillian
Yu, Zhou
contents As large language models achieve impressive scores on traditional benchmarks, an increasing number of researchers are becoming concerned about benchmark data leakage during pre-training, commonly known as the data contamination problem. To ensure fair evaluation, recent benchmarks release only the training and validation sets, keeping the test set labels closed-source. They require anyone wishing to evaluate his language model to submit the model's predictions for centralized processing and then publish the model's result on their leaderboard. However, this submission process is inefficient and prevents effective error analysis. To address this issue, we propose to variabilize benchmarks and evaluate language models dynamically. Specifically, we extract variables from each test case and define a value range for each variable. For each evaluation, we sample new values from these value ranges to create unique test cases, thus ensuring a fresh evaluation each time. We applied this variable perturbation method to four datasets: GSM8K, ARC, CommonsenseQA, and TruthfulQA, which cover mathematical generation and multiple-choice tasks. Our experimental results demonstrate that this approach provides a more accurate assessment of the true capabilities of language models, effectively mitigating the contamination problem.
format Preprint
id arxiv_https___arxiv_org_abs_2406_17681
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle VarBench: Robust Language Model Benchmarking Through Dynamic Variable Perturbation
Qian, Kun
Wan, Shunji
Tang, Claudia
Wang, Youzhi
Zhang, Xuanming
Chen, Maximillian
Yu, Zhou
Computation and Language
As large language models achieve impressive scores on traditional benchmarks, an increasing number of researchers are becoming concerned about benchmark data leakage during pre-training, commonly known as the data contamination problem. To ensure fair evaluation, recent benchmarks release only the training and validation sets, keeping the test set labels closed-source. They require anyone wishing to evaluate his language model to submit the model's predictions for centralized processing and then publish the model's result on their leaderboard. However, this submission process is inefficient and prevents effective error analysis. To address this issue, we propose to variabilize benchmarks and evaluate language models dynamically. Specifically, we extract variables from each test case and define a value range for each variable. For each evaluation, we sample new values from these value ranges to create unique test cases, thus ensuring a fresh evaluation each time. We applied this variable perturbation method to four datasets: GSM8K, ARC, CommonsenseQA, and TruthfulQA, which cover mathematical generation and multiple-choice tasks. Our experimental results demonstrate that this approach provides a more accurate assessment of the true capabilities of language models, effectively mitigating the contamination problem.
title VarBench: Robust Language Model Benchmarking Through Dynamic Variable Perturbation
topic Computation and Language
url https://arxiv.org/abs/2406.17681